ON several occasions, Dionne Warwick almost seemed exhausted, once in a while sitting down between songs to catch her breath and communicate with her audience. Still, the silver-haired 77-year-old delivered a consistent performance in a high clear voiceof course without moving too much on stage. "I need your participation. That's the rule," said Warwick.

On the first day of Java Jazz 2018 on Friday two weeks ago, Warwick opened her straightforward